报告摘要: We present extensive optical photometric and spectroscopic observations of the high-velocity (HV) Type Ia supernova (SN Ia) 2017fgc, covering the phase from ∼ 12 d before to ∼ 389 d after maximum brightness. The resulting light curves show that SN 2017fgc is similar to normal SNe Ia, with an absolute peak magnitude of MmBax≈−19.32±0.13 magandapost-peak decline of∆m15(B)=1.05±0.07mag. The peak bolometric luminosity of SN 2017fgc is derived to be (1.36 ± 0.12) × 1043 erg s−1 , corresponding to a Ni56 mass of 0.50 ± 0.03 M⊙.
报告人简介: 曾祥云,男,中国科学院新疆天文台博士,光学组成员,导师艾力.伊莎木丁研究员。研究方向为时域天文及实测天文,包括时域巡天,及特殊变星相关研究。
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